10.70 CP A solid uniform Figure P10.70 ball rolls without slipping up a hill (Fig. P10.70). At the top of the hill, it is moving horizon- tally, and then it goes over the vertical cliff. (a) How far from 25.0 m/s 28.0 m the foot of the cliff does the ball land, and how fast is it moving just before it lands? (b) Notice that when the balls lands, it has a greater translational speed than when it was at the bottom of the hill. Does this mean that the ball somehow gained energy? Explain!
10.70 CP A solid uniform Figure P10.70 ball rolls without slipping up a hill (Fig. P10.70). At the top of the hill, it is moving horizon- tally, and then it goes over the vertical cliff. (a) How far from 25.0 m/s 28.0 m the foot of the cliff does the ball land, and how fast is it moving just before it lands? (b) Notice that when the balls lands, it has a greater translational speed than when it was at the bottom of the hill. Does this mean that the ball somehow gained energy? Explain!
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